I know the concept of containers have been around for awhile, but I finally decided to start learning how to use Docker by going through the O'Reilly book.
First few pages, it tells me to run 'docker run debian echo "Hello World". So I'm like cool, but after running it nothing really happened. Keep in mind, I'm kind of a noob so I was just sitting there like, "What was the point of that?".
But something struck me, I ran "docker run debian ls /" and the output of the filesystem had a different result from my native filesystem.
Here's where my mind was blown, I thought, "Holy shit, did I just basically create a debian environment inside my CentOS-running laptop in the blink of an eye?".
Had to get up and walk away from my desk to process what happened. Sorry, if I sound like a noob, just thought this shit was super cool. I know it's a lightweight stripped-down version of Debian, but still, I thought it was pretty crazy.
I guess this leads me to my next question...Are containers supposed to replace hypervisors and VM's?
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